Media type: Book Title: The agricultural revolution of the 20th century Contributor: Paarlberg, Don [Author]; Paarlberg, Philip L. [Author] imprint: Ames, Iowa: Iowa State Press, 2001 Issue: 1. paperback ed., [Nachdr.] Extent: XVI, 154 S.; Ill., graph. Darst Language: English ISBN: 0813804094; 0813821983 RVK notation: ZA 80881 : Nordamerika Keywords: USA > Landwirtschaft > Geschichte 1900-2000 > Innovation > Technischer Fortschritt Origination: Footnote: